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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2017) [Effective from January 1, 2017]For more details click here
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2017)
[Effective from January 1, 2017]
For more details click here

ICV 2015: 85.95
Index Copernicus ICI Journals Master List 2015 - IJCMAS--ICV 2015: 85.95
For more details click here
journals IJCMAS
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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2015: 85.95
NAAS RATING 2017: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(3): 1581-1590
DOI: https://doi.org/10.20546/ijcmas.2017.603.182


Effect of Potassium Nitrate on Yield and Yield Attributes of Spring Maize (Zea mays L.) under Different Dates of Planting
Harmeet Singh*, Mandeep Singh and Jasjit Singh Kang
Department of Agronomy, Punjab Agricultural University, Ludhiana-141004, India
*Corresponding author
Abstract:

A field experiment entitled was conducted on loamy sand soil, which was low in organic carbon and available nitrogen and medium in available phosphorus and potassium during spring season of 2014 and 2015 at Student's Research Farm, Punjab Agricultural University, Ludhiana. Experiment was laid out in split plot design with four replications with three dates of planting viz. February 10, February 20 and March 2 in main plots and seven foliar applications viz. 1% KNO3 at tassel initiation, 2% KNO3 at tassel initiation, 1% KNO3 at tassel initiation+ another spray after one week, 2% KNO3 at tassel initiation+ another spray after one week, WS at tassel initiation tassel initiation+ another spray after one week and control (no spray) in sub plots. Different planting dates as well as foliar applications of both water and KNO3 had a significant effect on yield and yield attributes of spring maize. The planting of maize on February 20 gave significantly higher grain yield. Various yield attributes (number of cobs per plant, cob length, cob girth, number of rows per cob, number of grains per row, number grains per cob and 100 grain weight) were higher for February 20. Foliar application had significant effect on various yield attributes like number of cobs per plant, cob length, cob girth, number of rows per cob, number of grains per row, number grains per cob and 100 grain weight with 1% KNO3 at tassel initiation gave significantly higher grain yield.


Keywords: Spring maize, Heat stress, Dates of planting, Foliar application, KNO3
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How to cite this article:

Harmeet Singh, Mandeep Singh and Jasjit Singh Kang. 2017. Effect of Potassium Nitrate on Yield and Yield Attributes of Spring Maize (Zea mays L.) under Different Dates of Planting. Int.J.Curr.Microbiol.App.Sci. 6(3): 1581-1590. doi: https://doi.org/10.20546/ijcmas.2017.603.182